| Autor: |
Miroshnikov, Vitaly, Savin, Oleksandr, Sobol, Volodymyr, Younis, Basheer |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2023, Vol. 2684 Issue 1, p1-8, 8p |
| Abstrakt: |
A solution method of dynamic creep-damage problems for bodies which can be modeled as thin-walled beams is presented in the paper. The original initial-boundary-value problem of dynamic creep for bodies under the action of harmonic loading is reduced to two correlated initial-boundary-value problems in two time scales – slow and fast. The first problem (slow time scale) is solved by using the variational principle for the mixed functional, numerical methods of Runge–Kutta–Merson and RFM (Rvachov's Functions Method). The second problem in fast time scale is solved by using Gaussian numerical method for determining of amplitude values of stresses. Numerical data of solving dynamic creep-damage problem for beams bending with different types of edges are given. The amplitude of the oscillating load has significant effect on the time to rupture of the beam. Increasing the values of the amplitude of this load leads to a decrease in the value of the time to rupture of the beam for all types of edges fixations. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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